[libclang] Introduce clang_Cursor_getObjCPropertyAttributes to query the written attributes in a property declaration.

rdar://13684512

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179803 91177308-0d34-0410-b5e6-96231b3b80d8

3 files changed, 52 insertions, 0 deletions

diff --git a/tools/c-index-test/c-index-test.c b/tools/c-index-test/c-index-test.c
index b77c88de58..ab022a9d98 100644
--- a/tools/c-index-test/c-index-test.c
+++ b/tools/c-index-test/c-index-test.c
@@ -787,6 +787,28 @@ static void PrintCursor(CXCursor Cursor,
     }
 
     PrintCursorComments(Cursor, ValidationData);
+
+    {
+      unsigned PropAttrs = clang_Cursor_getObjCPropertyAttributes(Cursor, 0);
+      if (PropAttrs != CXObjCPropertyAttr_noattr) {
+        printf(" [");
+        #define PRINT_PROP_ATTR(A) \
+          if (PropAttrs & CXObjCPropertyAttr_##A) printf(#A ",")
+        PRINT_PROP_ATTR(readonly);
+        PRINT_PROP_ATTR(getter);
+        PRINT_PROP_ATTR(assign);
+        PRINT_PROP_ATTR(readwrite);
+        PRINT_PROP_ATTR(retain);
+        PRINT_PROP_ATTR(copy);
+        PRINT_PROP_ATTR(nonatomic);
+        PRINT_PROP_ATTR(setter);
+        PRINT_PROP_ATTR(atomic);
+        PRINT_PROP_ATTR(weak);
+        PRINT_PROP_ATTR(strong);
+        PRINT_PROP_ATTR(unsafe_unretained);
+        printf("]");
+      }
+    }
   }
 }
 
diff --git a/tools/libclang/CIndex.cpp b/tools/libclang/CIndex.cpp
index 95b49fcd25..fd13401173 100644
--- a/tools/libclang/CIndex.cpp
+++ b/tools/libclang/CIndex.cpp
@@ -5919,6 +5919,35 @@ CXFile clang_getIncludedFile(CXCursor cursor) {
   return const_cast<FileEntry *>(ID->getFile());
 }
 
+unsigned clang_Cursor_getObjCPropertyAttributes(CXCursor C, unsigned reserved) {
+  if (C.kind != CXCursor_ObjCPropertyDecl)
+    return CXObjCPropertyAttr_noattr;
+
+  unsigned Result = CXObjCPropertyAttr_noattr;
+  const ObjCPropertyDecl *PD = dyn_cast<ObjCPropertyDecl>(getCursorDecl(C));
+  ObjCPropertyDecl::PropertyAttributeKind Attr =
+      PD->getPropertyAttributesAsWritten();
+
+#define SET_CXOBJCPROP_ATTR(A) \
+  if (Attr & ObjCPropertyDecl::OBJC_PR_##A) \
+    Result |= CXObjCPropertyAttr_##A
+  SET_CXOBJCPROP_ATTR(readonly);
+  SET_CXOBJCPROP_ATTR(getter);
+  SET_CXOBJCPROP_ATTR(assign);
+  SET_CXOBJCPROP_ATTR(readwrite);
+  SET_CXOBJCPROP_ATTR(retain);
+  SET_CXOBJCPROP_ATTR(copy);
+  SET_CXOBJCPROP_ATTR(nonatomic);
+  SET_CXOBJCPROP_ATTR(setter);
+  SET_CXOBJCPROP_ATTR(atomic);
+  SET_CXOBJCPROP_ATTR(weak);
+  SET_CXOBJCPROP_ATTR(strong);
+  SET_CXOBJCPROP_ATTR(unsafe_unretained);
+#undef SET_CXOBJCPROP_ATTR
+
+  return Result;
+}
+
 CXSourceRange clang_Cursor_getCommentRange(CXCursor C) {
   if (!clang_isDeclaration(C.kind))
     return clang_getNullRange();
diff --git a/tools/libclang/libclang.exports b/tools/libclang/libclang.exports
index 16932a5100..ad5181274d 100644
--- a/tools/libclang/libclang.exports
+++ b/tools/libclang/libclang.exports
@@ -10,6 +10,7 @@ clang_Cursor_getCommentRange
 clang_Cursor_getParsedComment
 clang_Cursor_getRawCommentText
 clang_Cursor_getNumArguments
+clang_Cursor_getObjCPropertyAttributes
 clang_Cursor_getObjCSelectorIndex
 clang_Cursor_getSpellingNameRange
 clang_Cursor_getTranslationUnit